Is fiberglass rebar as good as steel?
Robert Miller
Updated on April 27, 2026
Glass fiber reinforced polymer (GFRP) was used as an alternative material to the steel rebar. It is lightweight, no-corrosion, superior tensile strength, and high mechanical performance. Installation of the GFRP rebar is similar to steel rebar, but with less handling, transporting and storage problems.
Which is better fiberglass or steel rebar?
It also has a high threshold of bearing impacts so damage is minimized while loading or unloading material. Fiberglass rebar also has no susceptibility to corrosion, 2x the tensile strength, 1/4 the weight of steel and 45 GPa and 60 Gpa Modulus of elasticity.How long does fiberglass rebar last?
Structures built with black steel generally need some rehabilitation in as little as 5 to 10 years and frequently need major rehabilitation within 20 years. No corrosion effect has been detected on GFRP; conservative estimates indicate fiberglass reinforced concrete structures will last longer than 100 years.Is fiberglass rebar more expensive?
And the newer bars have been designed with a gritty exterior so that they bond well to the concrete. There are some drawbacks to FRP rebar, however. Glass-fiber bars currently cost 15% to 25% more than the equivalent steel reinforcing.What are the benefits of fiberglass rebar?
Following are the reasons why you should use fiberglass rebar in order to dramatically increase the service life of your project.
- Fiberglass Rebar is corrosion-resistant. ...
- A perfect alternative to traditional concrete reinforcement. ...
- Long service life. ...
- A wide range of applications. ...
- Save time and money.